The Press Formability in Magnesium Alloy AZ31

Formability on cylindrical deep drawing and mechanical properties at relatively low temperature was investigated for a commercially rolled AZ31 magnesium. A small punch radius, which ratio to thickness was 2.5, was adopted intentionally. At room temperature, brittle fracture occurred near the flat portion of punch shoulder like as blanking. The ratio of drawing rate to punch diameter was from 5 to 200 mm/min. The drawing ratio of 1.67 was obtained at 383 K, and limiting drawing ratio of 2.2 was obtained at 453 K.